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From D K <deepe...@gmail.com>
Subject Re: Hive does not show data generated with HCatOutputFormat
Date Wed, 23 Jul 2014 11:41:01 GMT
I am wondering if the presence of _SUCCESS file is causing the empty
result. Can you try setting property
"mapreduce.fileoutputcommitter.marksuccessfuljobs" to false to disable the
generation of _SUCCESS file? Just a long shot but might not hurt to debug
this.



On Mon, Jul 21, 2014 at 4:47 AM, Timo Walther <flink@twalthr.com> wrote:

>  Hi everybody,
>
> I'm currently working on a compatibility layer that enables using the
> HCatOutputFormat with Apache Incubator Flink. I followed the corresponding
> wiki page (
> https://cwiki.apache.org/confluence/display/Hive/HCatalog+InputOutput)
> for my implementation. I'm now able to execute a job and the
> HCatOutputFormat finishes without any exception and stores files like
> "_SUCCESS", "part-m-00000" (with reasonable size and as RCFiles) in
> "/user/hive/warehouse/my.db/my_table/date=2014-04-07/", however, Hive still
> doesn't find any data in the table. When I execute "SELECT * FROM
> my_table;" the result is always empty.
>
> Do I somehow have to register the files I have created before I can access
> them within Hive? Or is there anything I could do wrong?
> I'm using the Hive version of CDH 5.
>
> Thanks in advance.
>
> Regards,
> Timo
>

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